Aes`ti*va"tion (#), n.

1. Zool.

The state of torpidity induced by the heat and dryness of summer, as in certain snails; -- opposed to hibernation.

2. Bot.

The arrangement of the petals in a flower bud, as to folding, overlapping, etc.; prefloration.

Gray.

[Spelt also estivation.]

 

© Webster 1913.

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